Jaeger is a CTAC Praetorian. He was the one who found Takeshi Kovacs, seeing him as his son, trained him to be a CTAC Praetorian but eventually Kovacs betrayed Jaeger and joined the Uprising. He led the assault force that eventually arrested Kovacs in 2134. During the mission, he executed Sarah and blamed the act on Kovacs.
(Source: altered-carbon.fandom.com)
